Masanao Kunugi
31Patents
10h-index
37Co-inventors
75Inventor score
Filing activity: May 3, 1988 → Apr 23, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5336000A | Thermal transfer type printer and method of rejuvenating an ink sheet employed in the printer | Performing Operations; Transporting | 26 | Expired |
| US5296266A | Method of preparing microcapsule | Physics | 22 | Expired |
| US5053821A | Electrophotographic image forming apparatus using photoconductive toner | Physics | 21 | Expired |
| US6907215B2 | Developing device and image forming apparatus incorporating the same | Physics | 15 | Expired |
| US4921768A | Electrophotographic image forming | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5324885A | Roller member for an electrophotographic device | Performing Operations; Transporting | 12 | Expired |
| US6233424A | Image receiving sheet having particular critical surface tension, viscoelastic, and rockwell hardness characteristics and image receiving apparatus using the same | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5438395A | Development process | Physics | 11 | Expired |
| US5214239A | Apparatus for forming an electrophotographic image having a novel toner carrier | Performing Operations; Transporting | 11 | Expired |
| US7565099B2 | Developing device and image forming apparatus having a toner-particle bearing roller with a helical groove portion | Physics | 10 | Active |
| US6875550B2 | Non-magnetic single-component toner, method of preparing the same, and image forming apparatus using the same | Physics | 9 | Expired |
| US6312788A | Image receiving sheet and image receiving apparatus using the same | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5659858A | Developing method and system | Physics | 8 | Expired |
| US4948692A | Combination toner and printer utilizing same | Physics | 8 | Expired |
| US6994942B2 | Non-magnetic single-component toner, method of preparing the same, and image forming apparatus using the same | Physics | 8 | Expired |
| US7292797B2 | Toner quantity measuring device, method of measuring toner quantity and image forming apparatus | Physics | 7 | Expired |
| US5708941A | Developing apparatus using non-magnetic spherical toner particles | Physics | 7 | Expired |
| US5570168A | Development process | Physics | 6 | Expired |
| US5424815A | Developing device | Performing Operations; Transporting | 4 | Expired |
| US5766813A | Developing method and system for transferring toner from a toner carrier member to a latent image carrier | Physics | 3 | Expired |
| US7041423B2 | Developing method and image forming method | Physics | 3 | Expired |
| US7135260B2 | Imaging system | Physics | 2 | Expired |
| US5439769A | Developing method and system | Physics | 1 | Expired |
| US10036463B2 | Robot and gear device | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10344848B2 | Robot, gear device, and manufacturing method for gear device | Chemistry; Metallurgy | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.